Field:
The image on a TV-screen is drawn in two parts: odd and even lines, which once together are known as frames.

Fill rate:
This is the number of pixels that the graphics board can render (this means texturing and shading) over a given period of time. The raw fill rate of a board is calculated by multiplying the number of pixels it processes per clock by its core clock.

Flat panel:
Flat panels mark the latest development in display technology. Standard CRT displays rely on cathode ray tubes, which account for the depth of most computer monitors and TV sets. Flat-panel technology eliminates these tubes and substantially improves picture quality.

Fogging:
This is a derived effect of alpha blending which adds realism by combining a transparency effect and a continuous blend of 3D objects in background colors. It adds the effect of density to the atmosphere.

Fps (frames per second):
This is the number of frames that are drawn on-screen per second. The greater the number of frames, the greater the motion realism. A standard TV image is refreshed 30 times per second, although for most games the refresh rate is lower. The 3D Prophet graphics boards can display images on your PC at the correct speed and can accelerate motion up to 60 or 100 frames per second if the game is programmed for this.

Frame:
This is the complete image that appears on a TV-screen, being made up of two scan fields.

Frame buffer:
This is the part of the memory that is used to store a complete image. The frame buffer usually contains 2 frames: one that is being calculated while the other is being sent to the monitor (see multi-buffering).

Full Scene Anti-Aliasing (FSAA):
A technique to eliminate jagged edges (see jaggies and aliasing) from the whole of a 3D scene's appearance, as opposed to the Edge Anti-Aliasing technique, which exclusively processes the edges of objects. FSAA therefore improves the quality of images, and enhances visual comfort.